Diamond Original K412S Trunk Lip Mount The Diamond K412S is a deluxe, adjustable antenna mount for trunks or hatch backs. It features a UHF [SO-239] base and 13.5 feet of RG316/U coax cable terminating in an SMA male plug. This mount is rated to 500 watts FM, 700 watts PEP SSB. This mount also comes with a rain cap and a free SMA to PL259 RF adapter. Includes: Allen wrenches, Adhesive cable holders, SMA female to PL-259 adapter (RSA-3472), Weather Cap Recommended for antennas under 45"